ANGULAR SPEED INDICATOR Russian patent published in 2006 - IPC G01P9/04 G01C19/56 

FIELD: measuring equipment engineering, in particular, transformers of angular speed to electric signal.

SUBSTANCE: angular speed indicator has resonator, circuits of primary and secondary vibrators made thereon, systems of primary and secondary oscillation indicators, primary system for controlling vibration with phase shift circuit and circuit for phased automatic frequency adjustment, secondary vibration control system with circuits for cophased and quadrature signals processing. Circuit of phased automatic frequency adjustment contains phase demodulator, correcting filter, transformer of direct voltage to frequency signal and phase shifter. Transformer of direct voltage to frequency signal is made in composition of direct current amplifier connected to output of correcting filter, analog-digital converter, high frequency generator on quartz resonator, programmable counter with frequency division, trigger. Phase shifter is made in form of phase splitter with outputs of signals with phase shifts 0°, 90°, 180°, 270° relatively to trigger output. Circuit for cophased signal processing additionally includes output amplifier, output signal of which is a measure of angular speed.

EFFECT: increased precision of angular speed measurements.

2 cl, 3 dwg